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I have a 1987 f150 with the 4.9 and single gas tank. This old gal is relatively new to me and I want to make sure I am providing proper maintenance. I’m confused regarding the Single Function Reservoir as to whether it has a filter in it that I need to replace or not. I have seen comments about Ford doing away with the filter and other comments about it can be a real problem taking the canister off to see if there is a filter inside so I’d like to avoid that if possible. The truck does have an external inline fuel filter after the SFR , is this a definite indication that there is not one in the SFR? Any help in clarifying this is appreciated.
The single function reservoir should have a filter in it, but I have never seen anywhere that sells that filter element. I'd say that if you have no reason to believe it is clogged, then leave it alone.
POST PICS. If the reservoir has a deep cup (like the pic linked below), there is no filter. And if you clean it, you should see "DO NOT REMOVE CUP" printed into the plastic. If the cup is shallow, there is a filter inside.
But unless there's some specific test that you've done which indicates a filter problem, you should probably leave it alone. Read the NEXT several pages in that photo album before disturbing the SFR, other than external cleaning. It's OK to use a pressure washer as long as you don't put the tip within ~3" of the reservoir, fuel lines, or any seam/joint/connection.
Thanks Steve83. Thanks to some of your links from previous posts I have a better understanding of the function of this reservoir. I just didn’t know if there was any maintenance required but I’m gonna stick with the “if it ain’t broke don’t fix it” approach. The pic shows the canister.
Originally Posted by Steve83
POST PICS. If the reservoir has a deep cup (like the pic linked below), there is no filter. And if you clean it, you should see "DO NOT REMOVE CUP" printed into the plastic. If the cup is shallow, there is a filter inside.
But unless there's some specific test that you've done which indicates a filter problem, you should probably leave it alone. Read the NEXT several pages in that photo album before disturbing the SFR, other than external cleaning. It's OK to use a pressure washer as long as you don't put the tip within ~3" of the reservoir, fuel lines, or any seam/joint/connection.
That cup contains a filter, but it's not on the maintenance schedule. So until you can positively determine that it needs changing, don't. Just keep it clean.
That cup contains a filter, but it's not on the maintenance schedule. So until you can positively determine that it needs changing, don't. Just keep it clean.
thanks steve83 that's the sfr i have and I am leaking fuel around the bowl. even if it doesn't have a filter I need a new o ring I figure.
04-05-2022, 05:31 PM
Single function reservoir
